Genuine Omega® cap jewel in setting for balance upper, part 121, Omega® base calibre 17 (see all calibres in description) illusion top settings This 6" length is the

This 6" length is the length of the cutting portion of the file

105 x 318 (12 1/2")

screw for unlocking wheel friction spring to fit Jaeger LeCoultre® calibres: 240

Genuine Omega® sounding ring

Note: Please see enlarge image for measurement explanation

Genuine Omega® cap jewel in setting for balance upper, part 121, Omega® base calibre 17 (see all calibres in description) illusion top settings This 6" length is theGenuine Omega cap jewel in setting for balance upper, part number 121 Fits calibres: Omega 17 Omega 17 NN Omega 18 EP Omega 18 P CHRO Omega 18 P * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied by Perrin Supply Ltd.